[3: Commission Staff Working Documents "Key economic, employment and social trends behind the European Pillar of Social Rights", (SWD (2016) 51), and "The EU social acquis" (SWD(2016) 50) of 8 March 2016.]
[3: Werkdocumenten voor de diensten van de Commissie "Key economic, employment and social trends behind the European Pillar of Social Rights", (SWD(2016) 51), en "The EU social acquis" (SWD(2016) 50) van 8 maart 2016.]